<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
  <form th:action="@{/login}" method="post">
        用户名:<input type="text" required name="username">
        <br>
        密码:<input type="password" required name="password">
        <br>
        <input type="submit" value="登录"><label th:text="${msg}"></label>
  </form>
</body>
</html>